Hotblack
type: MusicGroup
popularity: 6
followers: 249
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9376e32549921de9b186558a3fa3e392265d9936f93badf35db064a47558f55
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbd6618e-dcb5-4b4c-923e-5ca7e08c4d08.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbd6618e-dcb5-4b4c-923e-5ca7e08c4d08.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbd6618e-dcb5-4b4c-923e-5ca7e08c4d08
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9376e32549921de9b186558a3fa3e392265d9936f93badf35db064a47558f55. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbd6618e-dcb5-4b4c-923e-5ca7e08c4d08.json and https://artists.proofprofile.net/proofs/artist/fbd6618e-dcb5-4b4c-923e-5ca7e08c4d08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
album: Turbulence
  type: MusicAlbum
  date published: 2022-08-11
album: CRYOBLITZ
  type: MusicAlbum
  date published: 2023-08-04
album: waterbed surf time
  type: MusicAlbum
  date published: 2024-03-29
album: HEAD IN A SHED
  type: MusicAlbum
  date published: 2024-04-26
album: YSO VAPID?
  type: MusicAlbum
  date published: 2024-05-17
album: reverie
  type: MusicAlbum
  date published: 2024-06-28
album: HED IN A SHED
  type: MusicAlbum
  date published: 2024-07-26
album: REDWASH
  type: MusicAlbum
  date published: 2024-10-18
  track: REDWASH
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186000
    explicit: false
    by artist: Hotblack
    in album: REDWASH
      type: MusicAlbum
      date published: 2024-10-18
    isrc code: QZWFG2432528
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T00:28:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb78475d834169e3e4a4938aad9aea68a6a30550c012be09c92be64ff5a92507f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFG2432528
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78475d834169e3e4a4938aad9aea68a6a30550c012be09c92be64ff5a92507f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFG2432528.
      date published: 2026-07-16T02:28:43Z
    audio: REDWASH
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.003
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.721
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.847
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.633
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: On the 150
  type: MusicAlbum
  date published: 2025-10-17
album: Gone
  type: MusicAlbum
  date published: 2025-11-14